Ball-and-socket ankle joint with hypoplastic sustentaculum tali

Abstract

A case of unilateral balland-socket ankle joint associated with short limb and hypoplastic sustentaculum tali is reported. We think that hypoplastic sustentaculum tali was the cardinal feature in the anatomical and kinematic alterations of the foot in this patient. We review the embryonic development of hindfoot to ascertain the possible origin of this unusual finding.

Surgical Correction of the Ball and Socket Ankle Joint in the Adult Associated With a Talonavicular Tarsal Coalition

“…It may be missed in childhood and present in middle-adulthood.The cause is unclear but hypotheses regarding both congenital and acquired origins have been described. 1,3,5,7,9,12,13,15,16,18 The majority of reports are isolated to pediatric age groups, and thus surgical correction is not applicable to the adult population. 1,3,5,7,9,12,13,15,16,18 To our knowledge, there are no reports on treatment in the adult.…”

Ankle Fusion Combined With Calcaneal Sliding Osteotomy for Severe Arthritic Ball and Socket Ankle Deformity

“…6 A ball and socket ankle deformity can be either congenital or acquired. The congenital type is commonly combined with various musculoskeletal anomalies, including tarsal coalitions, 4,9,12,13,20 toe syndactylization, 3,12,14 genu valgum deformity, 4,12 leg length discrepancy, 3,9,12,13 ray absence of the foot, 3,9,13 flatfoot, 14,21 hypoplasia of the sustentaculum tali, 16 and fibular hypoplasia presenting with a relatively short and broad lateral malleolus. 4,21 The acquired type is usually associated with more ligamentous laxity.…”